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Diffstat (limited to 'gcc-4.2.1/gcc/ada/s-intman-vxworks.adb')
| -rw-r--r-- | gcc-4.2.1/gcc/ada/s-intman-vxworks.adb | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/gcc-4.2.1/gcc/ada/s-intman-vxworks.adb b/gcc-4.2.1/gcc/ada/s-intman-vxworks.adb deleted file mode 100644 index 2d265ba76..000000000 --- a/gcc-4.2.1/gcc/ada/s-intman-vxworks.adb +++ /dev/null @@ -1,175 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- --- -- --- S Y S T E M . I N T E R R U P T _ M A N A G E M E N T -- --- -- --- B o d y -- --- -- --- Copyright (C) 1992-2006 Free Software Foundation, Inc. -- --- -- --- GNARL is free software; you can redistribute it and/or modify it under -- --- terms of the GNU General Public License as published by the Free Soft- -- --- ware Foundation; either version 2, or (at your option) any later ver- -- --- sion. GNARL is distributed in the hope that it will be useful, but WITH- -- --- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- --- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- --- for more details. You should have received a copy of the GNU General -- --- Public License distributed with GNARL; see file COPYING. If not, write -- --- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, -- --- Boston, MA 02110-1301, USA. -- --- -- --- As a special exception, if other files instantiate generics from this -- --- unit, or you link this unit with other files to produce an executable, -- --- this unit does not by itself cause the resulting executable to be -- --- covered by the GNU General Public License. This exception does not -- --- however invalidate any other reasons why the executable file might be -- --- covered by the GNU Public License. -- --- -- --- GNARL was developed by the GNARL team at Florida State University. -- --- Extensive contributions were provided by Ada Core Technologies, Inc. -- --- -- ------------------------------------------------------------------------------- - --- This is the VxWorks version of this package. - --- Make a careful study of all signals available under the OS, --- to see which need to be reserved, kept always unmasked, --- or kept always unmasked. --- Be on the lookout for special signals that --- may be used by the thread library. - -package body System.Interrupt_Management is - - use System.OS_Interface; - use type Interfaces.C.int; - - type Signal_List is array (Signal_ID range <>) of Signal_ID; - Exception_Signals : constant Signal_List (1 .. 4) := - (SIGFPE, SIGILL, SIGSEGV, SIGBUS); - - Exception_Action : aliased struct_sigaction; - -- Keep this variable global so that it is initialized only once - - procedure Map_And_Raise_Exception (signo : Signal); - pragma Import (C, Map_And_Raise_Exception, "__gnat_map_signal"); - -- Map signal to Ada exception and raise it. Different versions - -- of VxWorks need different mappings. - - ----------------------- - -- Local Subprograms -- - ----------------------- - - function State (Int : Interrupt_ID) return Character; - pragma Import (C, State, "__gnat_get_interrupt_state"); - -- Get interrupt state. Defined in init.c - -- The input argument is the interrupt number, - -- and the result is one of the following: - - Runtime : constant Character := 'r'; - Default : constant Character := 's'; - -- 'n' this interrupt not set by any Interrupt_State pragma - -- 'u' Interrupt_State pragma set state to User - -- 'r' Interrupt_State pragma set state to Runtime - -- 's' Interrupt_State pragma set state to System (use "default" - -- system handler) - - procedure Notify_Exception (signo : Signal); - -- Identify the Ada exception to be raised using - -- the information when the system received a synchronous signal. - - ---------------------- - -- Notify_Exception -- - ---------------------- - - procedure Notify_Exception (signo : Signal) is - Mask : aliased sigset_t; - - Result : int; - pragma Unreferenced (Result); - - begin - Result := pthread_sigmask (SIG_SETMASK, null, Mask'Unchecked_Access); - Result := sigdelset (Mask'Access, signo); - Result := pthread_sigmask (SIG_SETMASK, Mask'Unchecked_Access, null); - - Map_And_Raise_Exception (signo); - end Notify_Exception; - - --------------------------- - -- Initialize_Interrupts -- - --------------------------- - - -- Since there is no signal inheritance between VxWorks tasks, we need - -- to initialize signal handling in each task. - - procedure Initialize_Interrupts is - Result : int; - old_act : aliased struct_sigaction; - begin - for J in Exception_Signals'Range loop - Result := - sigaction - (Signal (Exception_Signals (J)), Exception_Action'Access, - old_act'Unchecked_Access); - pragma Assert (Result = 0); - end loop; - end Initialize_Interrupts; - - ---------------- - -- Initialize -- - ---------------- - - Initialized : Boolean := False; - - procedure Initialize is - mask : aliased sigset_t; - Result : int; - begin - if Initialized then - return; - end if; - - Initialized := True; - - -- Change this if you want to use another signal for task abort. - -- SIGTERM might be a good one. - - Abort_Task_Signal := SIGABRT; - - Exception_Action.sa_handler := Notify_Exception'Address; - Exception_Action.sa_flags := SA_ONSTACK; - Result := sigemptyset (mask'Access); - pragma Assert (Result = 0); - - for J in Exception_Signals'Range loop - Result := sigaddset (mask'Access, Signal (Exception_Signals (J))); - pragma Assert (Result = 0); - end loop; - - Exception_Action.sa_mask := mask; - - -- Initialize hardware interrupt handling - - pragma Assert (Reserve = (Interrupt_ID'Range => False)); - - -- Check all interrupts for state that requires keeping them reserved - - for J in Interrupt_ID'Range loop - if State (J) = Default or else State (J) = Runtime then - Reserve (J) := True; - end if; - end loop; - - -- Add exception signals to the set of unmasked signals - - for J in Exception_Signals'Range loop - Keep_Unmasked (Exception_Signals (J)) := True; - end loop; - - -- The abort signal must also be unmasked - - Keep_Unmasked (Abort_Task_Signal) := True; - end Initialize; - -end System.Interrupt_Management; |